The evolution of dermal shield vascularization in Testudinata and Pseudosuchia: phylogenetic constraints versus ecophysiological adaptations. [PDF]
Philos Trans R Soc Lond B Biol Sci, 2020 Studies on living turtles have demonstrated that shells are involved in the resistance to hypoxia during apnea via bone acidosis buffering; a process which is complemented with cutaneous respiration, transpharyngeal and cloacal gas exchanges in the soft-shell turtles.
Clarac F +4 more
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The pseudosuchian record in paleohistology: A small review. [PDF]
Anat Rec (Hoboken)Abstract Archosauria originated around the Earth's largest biotic crisis that severely affected all ecosystems globally, the Permotriassic Mass extinction event, and comprises two crown‐group lineages: the bird‐lineage and the crocodylian lineage. The bird lineage includes the iconic pterosaurs, as well as dinosaurs and birds, whereas the crocodylian ...
Scheyer TM.
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Palaeohistology and external microanatomy of rauisuchian osteoderms (Archosauria: Pseudosuchia) [PDF]
Palaeontology, 2011 Abstract: The presence of postcranial dermal armour is plesiomorphic for Archosauria. Here, we survey the external microanatomy and histology of postcranial osteoderms (i.e. dorsal paramedian and caudal osteoderms) of rauisuchians, a widely distributed assemblage of extinct predatory pseudosuchians from the Triassic.
Torsten M. Scheyer, Julia B. Desojo
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Pseudosuchian thermometabolism: A review of the past two decades. [PDF]
Anat Rec (Hoboken)Abstract Pseudosuchia, one of the two main clades of Archosauria, is today only represented by some 20 extant species, the crocodilians, representing only a fraction of its extinct diversity. Extant crocodilians are ectotherms but present morphological and anatomical features usually associated with endothermy.
Faure-Brac MG.
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The osteohistology of Orthosuchus stormbergi using synchrotron radiation microcomputed tomography. [PDF]
J AnatThe osteohistology of Orthosuchus stormbergi is described for the first time. The primary bone tissue was lamellar bone. It had relatively thick bone walls, possibly indicating an aquatic lifestyle. Orthosuchus was a small bodied adult reaching a maximum body mass of about 1.2 kg.
Weiss BM +4 more
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A new aetosaur genus (Archosauria: Pseudosuchia) from the early Late Triassic of southern Brazil
Zootaxa, 2012 We describe the new aetosaur Aetobarbakinoides brasiliensis gen. et sp. nov. from the early Late Triassic (late Carnian-early Norian) Brazilian Santa Maria Formation. The holotype is composed of a partial postcranium including several cer-vical and dorsal vertebrae and ribs, one anterior caudal vertebra, right scapula, right humerus, right tibia ...
Julia B. Desojo +2 more
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Biomechanical modeling of musculoskeletal function related to the terrestrial locomotion of Riojasuchus tenuisceps (Archosauria: Ornithosuchidae). [PDF]
Anat Rec (Hoboken)Abstract Riojasuchus tenuisceps was a pseudosuchian archosaur from the Late Triassic period in Argentina. Like other ornithosuchids, it had unusual morphology such as a unique “crocodile‐reversed” ankle joint, a lesser trochanter as in dinosaurs and a few other archosaurs, robust vertebrae, and somewhat shortened, gracile forelimbs.
von Baczko MB +4 more
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Locomotor and postural diversity among reptiles viewed through the prism of femoral microanatomy: Palaeobiological implications for some Permian and Mesozoic taxa. [PDF]
J Anat, 2023 Reptiles show great diversity of locomotion and posture. We employed phylogenetically informed statistical methods to explore their bone microanatomy. We used our models to infer the locomotion of extinct reptiles that document the different episodes of postural diversification in this clade.
Gônet J +4 more
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